FR3134372A3 - LOCKING MECHANISM AND ELECTRIC VEHICLE - Google Patents

Abstract

The present invention relates to a locking mechanism for locking the battery, comprising: a support part; a first rotating shaft; a first connection part, which is rotatably connected to the support part by the first rotating shaft, said first connection part consists of a first end and a second end, said first end is coordinated with the battery by the lock, in which, the force arm L2 of said second end is greater than the force arm L1 of said first end; a lock includes the bolt which is coordinated with said second end. In the present utility model, the force arm L2 of said second end is greater than the force arm L1 of said first end, so that the pressure on the bolt is reduced, it is practical that the bolt can be driven to retract, and the battery is unlocked. This also prevents damage to the side wall of the through hole on the lock case due to excessive force. (Figure for abstract: Fig.1)

Description

LOCKING MECHANISM AND ELECTRIC VEHICLE Technical field of the invention

The present invention relates to the technical field of electric vehicles, in particular to a locking mechanism and an electric vehicle.

Electric vehicles are electric-powered vehicles, which conform to the development trend of energy conservation and environmental protection required by the country, and have the advantages of small size and of practical use, so they have wide application prospects.

When using electric vehicles, they must be powered by batteries. After the batteries are exhausted, they need to be recharged circularly. Furthermore, for electric vehicles, batteries are the essential power unit.

In Chinese Patent Application No.: CN201810738722.5, it describes an intelligent electric vehicle battery lock structure, comprising a battery holder is fixedly mounted on a chassis frame, a spring lock is installed thereon battery holder, and the spring lock comprises a bolt and a return spring, in the natural state, the return spring makes the outer end of the bolt located outside the spring lock, and the holder of battery is provided with a key socket connected to the spring lock, and the battery box is provided with a battery keyhole corresponding to the bolt. The description of this technical solution describes that "insert the key of the spring lock into the key socket 11 and turn it, so as to cause the movement of the bolt 2, so that the bolt 2 is removed from a hole of the battery lock 31, then the battery can be removed.” When installing the battery, it must make the key drive the bolt move and insert it into a keyhole of the battery 31. When using electric vehicles, in order to avoid the shaking of the battery, bolt 2 should press firmly on the battery keyhole 31, but this is difficult to do with a key. But at least it is difficult to remove the key even if pressed firmly.

In Chinese patent application No.: CN202010468129.0 previously filed by the applicant discloses an anti-theft battery system for the shared electric scooter, comprising: a mounting assembly installed on the chassis frame, a battery assembly comprises a body of battery and a handle which is installed on the upper end of the battery body, a protection assembly comprises a U-shaped protective cover, in which there is a guide groove for supporting the battery body, and on which an installation through hole is arranged, and a battery lock penetrating the installation through hole is provided on the chassis frame and the spring pin that penetrates the protective cover, one side of the battery body is provided with 'an exhaust groove for putting the battery lock, and the bottom of the battery body is provided with a battery socket, a mounting assembly includes a base whose upper end is provided with a mounting groove, fixed on the chassis frame, and a battery connector which is fitted to the space of the battery socket is arranged in the mounting groove, an escape groove is provided with a hasp which is fitted to the bolt of the battery lock, and the battery lock is arranged obliquely. Referring to the of the present technique. During long-term use, some customers have reported that the bolts of some electronic locks cannot be retracted, causing the electronic lock to fail. The applicant found through analysis if one wants to prevent the battery from shaking during use, the bolt must press the hasp 108 firmly. But the hasp 108 will exert a reaction force on the bolt, as a result the bolt presses firmly on the side wall of the through hole on the electronic lock housing, and the bolt cannot be driven to retract. The bolt is subjected to excessive force, so the side wall of the through hole on the housing may be damaged. For this, the applicant intends to improve the previously filed patent.

In order to solve at least one technical problem existing in the state of the art, the present invention proposes a locking mechanism and an electric vehicle.

The present invention relates to a locking mechanism, for locking the battery, comprising:

a support piece;

a first rotating shaft;

a first connection part, which is rotatably connected to the support part by the first rotating shaft, said first connection part consists of a first end and a second end, said first end is coordinated with the battery by the lock, in which, the force arm L2 of said second end is greater than the force arm L1 of said first end, and

a lock includes the bolt which is coordinated with said second end.

Preferably, this locking mechanism further comprises:

a second rotating shaft, and

a second connecting piece, which is rotatably connected to the supporting piece by the second rotating shaft, said second connecting piece consists of a third end and a fourth end, said third end is coordinated with said second end, wherein , the force arm L4 of said fourth end is greater than the force arm L3 of said third end.

Said bolt is coordinated with said fourth end, in which,

when the locking mechanism is in the locking state, said fourth end presses on said bolt, said third end presses on said second end, which prevents the first connecting part from rotating to lock the battery;

when the locking mechanism is unlocked from the locked state, said fourth end can move relative to said bolt, and said first connecting part can be rotated under the action of an external force to unlock the battery.

Preferably, said locking mechanism also comprises the first elastic part of which one end is connected to or presses on said support part, and the other end is connected to or presses on said second connecting part, the elastic force of the first elastic piece causes the third end to tend to move away from the second end.

Preferably, when the locking mechanism is in the locking state, said fourth end presses on the side wall of the bolt.

Preferably, said lock also includes:

a housing ;

a slide, arranged in the housing;

a slide, in which said slide and said bolt are all connected to the slide in a sliding manner;

a spring, sheathed on said slide, the two ends of which are respectively connected to or press on said slide and said bolt, and

a motor, connected to the slide in a driven manner;

Said locking mechanism also comprises an auxiliary part which is rotatably connected to the support part, when said bolt emerges, the auxiliary part presses on the inclined surface of the bolt, said auxiliary part and said second connecting part are located on the path of movement of said first connection part, in which;

during the locking of the battery, when said first connection part rotates until it touches said auxiliary part to cause it to rotate, said auxiliary part compresses said bolt in order to make it retract, and then separate the fourth end of the side wall of the bolt;

after the separation of the fourth end and the side wall of the bolt, when said first connecting piece rotates until it touches the second connecting piece to cause it to rotate, so that the second end presses on the third end again.

Preferably, said auxiliary part is mounted on the second rotating shaft in a rotatable manner; when said auxiliary part does not touch said first part, one end of said auxiliary part near the bolt presses on the second connecting part, said auxiliary part is located on the path of movement of the bolt.

Preferably, said locking mechanism also comprises a torsion spring which is sheathed on the first rotating shaft, one end of the torsion spring presses on said support part, and the other end presses on said first connecting part, the force elastic of the torsion spring causes said first connecting piece to tend to rotate, then to unlock the battery.

The present invention also relates to an electric vehicle, comprising:

a battery, with a hasp;

a vehicle body, on which a battery compartment is deposited, said compartment is provided with a plug terminal for connecting the terminal located at the bottom of the battery, and

said locking mechanism, wherein the support part is arranged on the vehicle body.

The advantages provided by an aspect described by the present invention are:

in the present invention, the force arm L2 of said second end is greater than the force arm L1 of said first end, so that the pressure on the bolt is reduced, it is convenient that the bolt can be driven to retract ,and the battery is unlocked. This also prevents damage to the side wall of the through hole on the lock case due to excessive force.

When using the vehicle, bumps and vibrations cause the battery to jump and move in the battery compartment, which may damage the parts in contact with and inside the battery and finally cause the battery to become damaged. of the battery and the vehicle, the above-mentioned problems can be effectively solved through securely fixing the battery in the battery compartment.

By intelligently using the first connecting part and the second connecting part, with the help of the lever principle and their mutual movement, it can realize automatic locking and unlocking by “push once”, this operation is convenient.

Brief description of the figures

There is the diagram of the electric vehicle of the present invention;

There is the diagram of the electric vehicle when locking the battery of the present invention;

There is the diagram of the electric vehicle when unlocking the battery of the present invention;

There is the diagram of the partial parts when locking the battery of the present invention;

There is the dilated scheme of P on the of the present invention;

There is the diagram of the partial parts when unlocking the battery of the present invention;

There is the diagram of the lock of the present invention;

There is an exploded view according to Embodiment 1 of the present invention;

There is an axonometric view according to Embodiment 1 of the present invention;

There is an axonometric view of the first connection part according to embodiment 1 of the present invention;

There is an axonometric view of the second connection part according to embodiment 1 of the present invention;

There is a cutaway view when locking the battery according to Embodiment 1 of the present invention;

There is a cutaway view when the battery starts to unlock according to Embodiment 1 of the present invention;

There is a cutaway view as the battery completes unlocking according to Embodiment 1 of the present invention;

There is a cutaway view as the bolt emerges again according to embodiment 1 of the present invention;

There is a cutaway view when the battery starts to lock according to Embodiment 1 of the present invention;

There is a cutaway view as the bolt begins to retract according to Embodiment 1 of the present invention;

There is a cutaway view as the bolt gradually retracts according to embodiment 1 of the present invention;

There is a cutaway view when the bolt completes its retraction according to embodiment 1 of the present invention;

There is an axonometric view according to Embodiment 2 of the present invention;

There is an exploded view according to Embodiment 2 of the present invention;

There is a cutaway view when locking the battery according to Embodiment 2 of the present invention;

There is a cutaway view when the battery starts to unlock according to Embodiment 2 of the present invention;

There is a cutaway view after the battery has completed unlocking according to Embodiment 2 of the present invention;

There is a cutaway view as the bolt emerges according to embodiment 2 of the present invention;

There is an axonometric view according to Embodiment 3 of the present invention;

It is necessary to demonstrate that the embodiments of this application and their characteristics can be mutually combined in a conflict-free state; the technical solutions in the embodiments of the present invention will be described clearly and completely through the drawings attached below, obviously, the described embodiments are only a part of the present utility model, but not all. According to the embodiments of this utility model, without doing the creative work, all other embodiments obtained by common technicians in this field fall within the scope of protection of this utility model.

In describing this utility model, it is necessary to understand that the orientations or positions indicated by the terms "upper", "lower", "front", "rear", "left" and "right" are based on the descriptions of the drawings, it is to facilitate and simplify the description of the present invention instead of indicating or implying that the position or the element indicated must have a specific orientation and be constituted and used in a specific orientation, therefore it is not understood as the limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be explained to indicate or imply relative importance.

In embodiment 1, referring to Figures 1 to 19, the present invention provides a locking mechanism, for locking the battery, comprising:

a support part 1, for supporting other components; a first rotating shaft 2 can be rotatably mounted on the support part 1, and

a first connection part 3, which is rotatably connected to the support part 1 by the first rotating shaft 2, said first connection part 3 consists of a first end 301 and a second end 304, said first end 301 is coordinated with the battery A by the lock, so that the first connection part 3 can rotate; in which, with reference to the , the force arm L2 of said second end 304 is greater than the force arm L1 of said first end 301.

The locking mechanism further includes:

a second rotating shaft 5; a second connection part 6 which is rotatably connected to the support part 1 by the second rotating shaft 5, said second connection part 6 consists of a third end 601 and a fourth end 602, said third end 601 is coordinated with said second end 304; so that the second connecting part 6 can rotate; in which, (the force arm L4 of said fourth end 602 is multiplied by the force arm L2 of said second end 304) is greater than (the force arm L3 of said third end 601 is multiplied by the force arm L1 of said first end 301), preferably, in this embodiment, said force arm L4 of said fourth end 602 is greater than the force arm L3 of said third end 601.

and a lock 4 comprises the bolt 401 which is coordinated with said fourth end 602, in which,

set referring to the and the , when the locking mechanism is in the locking state, said fourth end 602 presses on said bolt 401, said third end 601 presses on said second end 304, so as to prevent the first connecting part 3 from rotating to lock the battery A ;

referring to the , when the locking mechanism is unlocked from the locked state, said fourth end 602 can move relative to the bolt 401, and said first connecting part 3 can rotate under the action of an external force to unlock the battery A .

and referring to the and the , during use, the first end 301 presses on the hasp A01 on the battery A, so that the bolt 401 emerges and presses on the fourth end 602, the third end 601 presses on the second end 304, in order to avoid rotating the first connecting part 3 and the second connecting part 6, and then it can form a balanced state and lock the battery A.

During use, or when battery A is manually pulled out, the first end 301 is subjected to a force by battery A, i.e. said force is F1; the second end 304 is subjected to a force F2 by the third end 601, the third end 601 is subjected to a reaction force F3 by the second end 304, therefore F3=F2. The fourth end 602 is subjected to a force F4 by the bolt 401, the bolt 401 is also subjected to a reaction force F4 by the fourth end 602.

According to the principle of leverage, F1*L1=F2*L2, F3*L3=F4*L4, therefore F4=(F1*L1*L3)/(L2*L4).

It can be seen that F4 is much lower than F1, and the bolt 401 can retract favorably due to a small force.

Depending on requirements, the concrete values of L1, L2, L3 and L4 can be designed by those skilled in the art in combination with concrete vehicle models.

Of course, in another embodiment, L4 can be less than or equal to L3, and that is enough to satisfy (L2*L4) > (L1*L3).

Referring to Figures 5, 12, 13 and 14, when unlocking, the third end 601 is separated from the second end 304 in time, so that the first end 301 can be separated from the battery A easily, and then the Battery A can be easily removed.

In this embodiment, said locking mechanism also comprises the first elastic part 7, one end of which is connected to or presses on said support part 1, and the other end is connected to or presses on said second connection part 6, the elastic force of the first elastic part 7 causes the third end 601 to tend to move away from the second end 304. The first elastic part 7 can be a tension spring, one end of which is connected to the support part 1 and the other end is connected to the second connecting part 6. In order to better drive the second connecting part 6 to rotate, the tension spring can be connected to the fourth end 602.

In the locked state, the tension spring is in the tensioned state.

Referring to the , when unlocking, the bolt 401 is retracted, the second connecting part 6 rotates in the direction opposite to those of the clockwise direction under the elastic force of the tension spring, the third end 601 is separated from the second end 304 , and the first connector 3 can rotate freely. The user can favorably separate the battery from the first end 301, in order to pull the battery A.

Referring to the , when the locking mechanism is in the locking state, said fourth end 602 presses on the side wall of the bolt 401. The bolt 401 is subjected to a force by the fourth end 602, this force is exerted on the side wall of the bolt 401 , on the , the force acting on the bolt 401 is essentially horizontal, and we must avoid exerting it on the inclined surface of the bolt 401. It must avoid pushing back the bolt 401 when the battery A is subjected to a large external force, this which can effectively prevent theft. Unless the structure is destroyed, it is difficult to pull battery A into battery A lock state.

The present embodiment proposes a lock 4, referring to the , more precisely, the lock 4 further comprises:

a housing 402 can be placed on the support part 1; a slide 403 is arranged in said housing 402; a slide 404, in which said slide 404 and said bolt 401 are all connected to the slide 403 in a sliding manner; a spring 405 sheathed on said slide 403, the two ends of which are respectively connected to or press on the slide 404 and the bolt 401; and a motor 406 is connected to the slide 404 in a driven manner; the motor 406 can be connected to the control system of the electric vehicle using a mobile phone application, and the application can be used to automatically control locking and unlocking. The applicant adopts the locks produced by Yakete (Tianjin) Electronic Technology Co., Ltd., for example, the technique described in Application No. CN201711302304.3 can be used.

The slide 404 is driven by the motor 406 to move, and the bolt 401 is driven to emerge and retract via the spring 405.

Of course, in other embodiments, the lock 4 may be other existing structures.

To achieve automatic locking of the battery, said locking mechanism also comprises an auxiliary part 8 which is rotatably connected to the support part 1, when said bolt 401 emerges, the auxiliary part 8 presses on the inclined surface of the bolt 401 , as shown in the . Said auxiliary part 8 and said second connection part 6 are located on the path of movement of said first connection part 3, in which;

during the locking of the battery A, when said first connecting part 3 is turned until it touches the auxiliary part 8 to cause it to rotate, said auxiliary part 8 compresses said bolt 401 in order to lead to the removal of bolt 401, and then separating the fourth end 602 from the side wall of the bolt 401;

and after the fourth end 602 has been separated from the side wall of the bolt 401, when said first connecting piece 3 is rotated until it touches the second connecting piece 6 to cause it to rotate, so that the second end 304 presses on the third end 601 again.

Concretely, in this embodiment, said auxiliary part 8 is mounted on the second rotating shaft 5 in a rotary manner; when said auxiliary part 8 does not touch said first connecting part 3, one end of the auxiliary part 8 near the bolt 401 presses on the second connecting part 6, said auxiliary part 8 is located on the path of movement of the bolt 401 .As shown in the .

To achieve automatic locking and automatically push the battery A, said locking mechanism also comprises the second elastic part, one end of which is connected to or presses on said support part 1, and the other end is connected to or presses on said first connecting piece 3, the elastic force of said second elastic piece causes said first connecting piece 3 to tend to rotate, then to unlock the battery A.

Concretely, said second elastic part is a torsion spring 9 which is sheathed on the first rotating shaft 2, one end of the torsion spring 9 presses on said support part 1, and the other end presses on said first connection part 3 The torsion spring 9 exerts the force on the first connecting part 3, so that the first connecting part 3 tends to rotate in the direction opposite to those of the clockwise hands.

As illustrated on the , this present embodiment is in a locked state.

As illustrated on the , the motor 406 drives the slide 404 to retract, and the bolt 401 is pulled by the spring 405 to retract. Under the action of the first elastic part 7, the second connecting part 6 rotates in the direction opposite to those of the clockwise direction, the third end 601 is separated from the second end 304.

As illustrated on the and the , under the elastic force of the torsion spring 9, the first connecting part 3 is driven to rotate in the direction opposite to those of the clockwise direction, and the battery A is pushed through the first end 301, so that battery A can be pushed automatically, which is more automatic. The user can directly lift battery A.

Referring to the , after the motor 406 drives the bolt 401 to retract, it generally drives the bolt 401 to emerge in approximately 2 seconds, as shown in Figure , the side wall of the bolt 401 presses on the fourth end 602, and its inclined surface presses on the auxiliary part 8.

Referring to the , during locking, the hasp A01 placed on the battery A presses on the first end 301. The battery A is pushed inwards. Battery A compresses the first end 301, then drives the first connecting piece 3 to rotate clockwise.

Referring to the , when the second end 304 touches the auxiliary part 8, the auxiliary part 8 is driven to rotate in the direction opposite to those of the clockwise direction, the auxiliary part 8 compresses the inclined surface of the bolt 401, so that the bolt 401 overcomes the elastic force of spring 405 to retract.

Referring to the , as the battery A continues to be locked and the first connecting part 3 continues to rotate in the clockwise direction, so that the second end 304 of the first connecting part 3 presses on the second connecting piece 6, then the second connecting piece 6 is driven to rotate in the counterclockwise direction until the first connecting piece 3 is separated from the second connecting piece 6 , as shown in the .

Under the effect of the spring 405, the bolt 401 overcomes the elastic force of the first elastic part 7 to emerge, then, the second connecting part 6 and the auxiliary part 8 are driven to rotate in the direction of clockwise until the third end 601 presses the second end 304 again, as shown in the , at this time, battery A is in the locking state again.

When using this embodiment, it can be seen that, when the battery A needs to be removed, the motor 406 drives the bolt 401 to retract via controlling the motor 406. After unlocking, under the The effect of the first elastic part 7 and the second elastic member, the battery A is ejected automatically.

In approximately 2 seconds, motor 406 automatically causes bolt 401 to emerge again. The structure of the engine 406 can be the existing means. For example, the applicant adopts the locks produced by Yakete (Tianjin) Electronic Technology Co., Ltd.

When battery A needs to be installed again, the hasp A01 arranged on battery A presses on the first end 301, and battery A is pushed inward, finally battery A is automatically locked.

As it is illustrated on the , assuming that no auxiliary part 8 is arranged, when it is necessary to lock the battery, given that the second connecting part 6 presses on the side wall of the bolt 401. Therefore, when the first connecting part 3 touches the second connecting piece 6, this does not cause the second connecting piece 6 to rotate. It must use motor 406 to drive bolt 401 to retract. After locking the battery A, the bolt 401 is caused to emerge again. Thus, there is a need for several operations.

However, in this embodiment, there is a need for only one unlocking operation, the motor 406 drives the bolt 401 to retract once, then the battery A can be automatically locked. Said operations are more commands.

In addition, when the locking mechanism is in the locking state, said first end 301 presses on the support part 1. As illustrated in the and the , when locking, the first connection part 3 is limited by the battery A and the support part 1 to avoid shaking, so as to guarantee effective support and maintenance of the battery A and to avoid shaking of the battery A.

In order to better lock the battery A, said first end 301 has a first slot which fits the hasp A01 on the battery A. Referring to the . In another embodiment, hasp A01 can be mounted with the first slot.

In addition, said first end 301 has a wear-resistant member 10, it is provided with a second slot 1001 which adapts to the hasp A01 on the battery A.

The first connecting part 3 in this embodiment can be made in the form of aluminum alloy to reduce weight. To prevent wear, the wear-resistant member 10 can be arranged, which is made in the form of stainless steel. The stainless steel is installed on the first end 301, and the second slot 1001 fits the hasp A01 on the battery A. In order to avoid excessive wear of the first end 301. As shown in the .

In addition, said first connection part 3 also comprises an elastic part 302 and a central part 303, said first end 301 is connected to said central part 303 via the elastic part 302, said central part 303 is connected to said second end 304; wherein said central part 303 is rotatably connected to said second rotating shaft 2; the elastic part 302 can be deformed, and the space between the first end 301 and the central part 303 can be adjusted through adjustment of the elastic part 302; said locking mechanism also comprises an adjustment part 11 for adjusting the space between the first end 301 and the central part 303. Said adjustment part 11 comprises a bolt which is connected to the central part 303 by the thread, and rests on said first end 301.

In order to make up for errors in production, installation and use. When it is found that there is a gap between the hasp A01 on the battery A and the second slot 1001, if the battery A shakes during locking, the first end 301 can be compressed downward by turning the bolt, so that the second slot 1001 presses the hasp A01 again, so it is effective to avoid the shaking of battery A.

Embodiment 2: referring to Figures 20 to 25; the differences between the present embodiment and termination mode 1 are that the present embodiment does not include the auxiliary part 8, and in the present embodiment, the fourth end 602 presses on the inclined surface of the bolt 401.

During use, the hasp A01 placed on the battery A is coordinated with the second slot 1001.

Referring to the , the structure is in a locked state.

Referring to the , when unlocking, it must use the motor 406 to cause the bolt 401 to retract by an order issued. Under the action of the first elastic part 7, the second connecting part 6 rotates in the direction opposite to that of the hands of a clock.

Referring to the , under the action of the second elastic member, the first connecting part 3 rotates in the direction opposite to those of the clockwise direction, so that the battery A can be pushed automatically.

As illustrated on the , the motor 406 causes the bolt 401 to emerge again.

When battery A is locked, battery A presses the second slot 1001 again. Battery A is pushed inwards. Then, the first connecting part 3 is driven to rotate in the clockwise direction. The first connecting part 3 causes the second connecting part 6 to rotate in the direction opposite to clockwise. The fourth end 602 compresses the bolt 401 in order to lead to the withdrawal of bolt 401.

When the first connecting part 3 is separated from the second connecting part 6, under the effect of the spring 405, the bolt 401 overcomes the elastic force of the first elastic part 7 to emerge again, so that the third end 601 presses the second end 304, and the battery A is in a locked state.

In this embodiment, only one operation is required, the automatic locking and unlocking of battery A can be carried out.

Referring to the , compared to embodiment 2, embodiment 3 does not include the first elastic member 7, the second connecting part 6 and the auxiliary part 8, and the bolt 401 presses on the second end 304 directly.

When unlocking, the bolt 401 retracts. Battery A is ejected automatically using the elastic force of the second elastic part.

When locking, after mounting the battery A, the bolt 401 is caused to emerge again.

The battery A in this present embodiment may be different from that of embodiments 1 and 2, and it only needs to adopt the structure of the existing art.

If we adopt the same structure in embodiments 1 and 2, it is sufficient for the first connecting part 3 to be able to cause the bolt 401 to retract during locking, when it is separated from the bolt 401, under the elastic force of the bolt 401. spring 405, the bolt 401 emerges again, and the second end 304 presses on the side wall of the bolt 401.

Embodiment 4, the main difference between this embodiment and embodiment 1 or 2 is:

the force arm L2 of said second end is not greater than the force arm L1 of said first end, L2 may be less than or equal to L1; (the force arm L4 of said fourth end is multiplied by the force arm L2 of said second end) is greater than (the force arm L3 of said third end is multiplied by the force arm L1 of said first end), it must satisfy (L4*L2)>(L3*L1). It should reduce pressure on the bolt to make removal easier.

Embodiment 5, referring to Figures 1, 2 and 3, presents an electric vehicle, comprising:

a battery A is fitted with a hasp A01; and a vehicle body B, on which a battery compartment B01 is deposited, said compartment B01 is provided with a plug terminal for connecting the terminal at the bottom of the battery A; the present embodiment further comprises a locking mechanism which is described in embodiments 1, 2 or 3 or 4, in which the support part 1 is provided on the vehicle body B. The present embodiment realizes effectively locking and automatically unlocking the battery A, avoiding the bolt 401 not retracting and damaging the housing due to the excessive force exerted on the bolt 401.

The above descriptions are only preferred embodiments of the present utility model, but the scope of protection of the present invention is not limited to this, within the framework of the technique disclosed by the present utility model. The utility, according to the technical solution of the present invention and its utility model concept, the substitution or change made by technicians who become familiar with the present technical field belongs to the scope of protection of the present utility model.

Claims (10)

Locking mechanism, for locking the battery, characterized in that it comprises:
a support piece (1);
a first rotating shaft (2);
a first connection part (3), which is rotatably connected to the support part (1) by the first rotating shaft (2), said first connection part (3) consists of a first end (301) and a second end (304), said first end (301) is coordinated with the battery by the lock, in which, the force arm L2 of said second end (304) is greater than the force arm L1 of said first end (301) , And
a lock (4) comprises the bolt (401) which is coordinated with said second end (304). Locking mechanism according to claim 1, characterized in that said locking mechanism also comprises:
a second rotating shaft (5);
and a second connection part (6), which is rotatably connected to the support part (1) by the second rotating shaft (5), said second connection part (6) consists of a third end (601) and a fourth end (602), said third end (601) is coordinated with said second end (304); in which, (the force arm L4 of said fourth end (602) is multiplied by the force arm L2 of said second end (304)) is greater than (the force arm L3 of said third end (602) is multiplied by the force arm L1 of said first end (301);
said bolt (401) is coordinated with said fourth end (602), in which,
when the locking mechanism is in the locking state, said fourth end (602) presses on said bolt (401), said third end (601) presses on said second end (304), which prevents the first connecting piece (3 ) turn to lock the battery;
when the locking mechanism is unlocked from the locked state, said fourth end (602) can move relative to said bolt (401), and said first connecting part (3) can be rotated under the action of a external effort to unlock the battery. Locking mechanism according to claim 2, characterized in that the force arm L4 of said fourth end (602) is greater than the force arm L3 of said third end (601). Locking mechanism, to lock the battery, includes:
a support piece (1);
a first rotating shaft (2);
a first connection part (3), which is rotatably connected to the support part (1) by the first rotating shaft (2), said first connection part (3) consists of a first end (301) and a second end (304), said first end (301) is coordinated with the battery by the lock, in which, the force arm L2 of said second end (304) is not greater than the force arm L1 of said first end (301).
a second rotating shaft (5);
a second connection part (6), which is rotatably connected to the support part (1) by the second rotating shaft (5), said second connection part (6) consists of a third end (601) and a fourth end (602), said third end (601) is coordinated with said second end (304); in which, (the force arm L4 of said fourth end (602) is multiplied by the force arm L2 of said second end (304)) is greater than (the force arm L3 of said third end (602) is multiplied by the force arm L1 of said first end (301), and
a lock (4) comprises the bolt (401) which is coordinated with said fourth end (602), in which,
when the locking mechanism is in the locking state, said fourth end (602) presses on said bolt (401), said third end (601) presses on said second end (304), which prevents the first connecting piece (3 ) turn to lock the battery;
when the locking mechanism is unlocked from the locked state, said fourth end (602) can move relative to said bolt (401), and said first connecting part (3) can be rotated under the action of a external effort to unlock the battery. Locking mechanism according to one of claims 2 or 4, characterized in that said locking mechanism also comprises the first elastic part (7) one end of which is connected to or presses on said support part (1), and the other end is connected to or presses on said second connecting piece (6), the elastic force of the first elastic piece (7) causes the third end (601) to tend to move away from the second end. Locking mechanism according to one of claims 2 or 4, characterized in that when the locking mechanism is in the locking state, said fourth end (602) presses on the side wall of the bolt (401). Locking mechanism according to claim 6, characterized in that said lock (4) also comprises:
a housing (402);
a slide (403), arranged in the housing (402);
a slide (404), in which said slide (404) and said bolt (401) are all connected to the slide (403) in a sliding manner;
a spring (405), sheathed on said slide (403), the two ends of which are respectively connected to or press on said slide (404) and said bolt (401), and
a motor (406), connected to the slide (404) in a driven manner. Locking mechanism according to claim 7, characterized in that said locking mechanism also comprises an auxiliary part (8) which is rotatably mounted on the second rotating shaft (5), when said bolt (401) emerges, the auxiliary part (8) presses on the inclined surface of the bolt (401), said auxiliary part (8) and said second connecting part (6) are located on the path of movement of said first connecting part (3), in which;
during the locking of the battery, when said first connection part (3) rotates until it touches said auxiliary part (8) to cause it to rotate, said auxiliary part (8) compresses said bolt (401 ) in order to make it retract, and then separate the fourth end (602) from the side wall of the bolt (401);
after the separation of the fourth end (602) and the side wall of the bolt (401), when said first connecting piece (3) is rotated until it touches the second connecting piece (6) for the cause it to rotate, so that the second end (304) presses on the third end (601) again, and
when said auxiliary part (8) does not touch said first connection part (3), one end of the auxiliary part (8) near the bolt (401) presses on the second connection part (6), said auxiliary part ( 8) is located on the path of movement of the bolt (401). Locking mechanism according to one of claims 2 or 4, characterized in that said locking mechanism also comprises a torsion spring (9) which is sheathed on the first rotary shaft (2), one end of the torsion spring (9 ) presses on said support piece (1), and the other end presses on said first connecting piece (3), the elastic force of the torsion spring (9) causes said first connecting piece (3) to tend to turn, then unlock the battery. Electric vehicle, characterized in that it comprises:
a battery (A), with a hasp (A01);
a vehicle body (B), on which a battery compartment (B01) is deposited, said compartment (B01) is provided with a plug terminal for connecting the terminal located at the bottom of the battery (A), and
locking mechanism according to one of claims 1 to 9, wherein the support part (1) is arranged on the vehicle body (B).